例5-3\77.jpg .....\corner.cpp .....\corner.dsp .....\corner.dsw .....\corner.ncb .....\corner.opt .....\corner.plg .....\Debug\corner.exe .....\.....\corner.ilk .....\.....\corner.obj .....\.....\corner.pch .....\.....\corner.pdb .....\.....\vc60.idb .....\.....\vc60.pdb .....\Makefile .....\pic3.png .....\Thumbs.db .....\Debug 例5-3